Monday morning, Texas Senator Ted Cruz took aim at the man currently ahead of him in South Carolina polling, Donald Trump, with an ad suggesting that Trump can't be counted on by South Carolina's rock-ribbed Republican electorate to nominate appropriately conservative Supreme Court justices. Trump, as Cruz demonstrates through some 16-year-old Meet the Press footage. Cruz also said that Trump, who attacked former President George W. Bush for the way he handled 9/11 and the second Iraq war late last week, has an "extreme and radical" position with regard to Bush — just like liberal documentarian Michael Moore.

Trump says that his position on abortion, like many of his other views, has bent in a severely conservative direction over the past couple of decades. So much so, in fact, that he lambasted Cruz as a liar in a press release put out later Monday — we're including the entire thing because, in the words of Trump, it's "great, just great:"

Ted Cruz is a totally unstable individual. He is the single biggest liar I’ve ever come across, in politics or otherwise, and I have seen some of the best of them. His statements are totally untrue and completely outrageous. It is hard to believe a person who proclaims to be a Christian could be so dishonest and lie so much.

Cruz said I would be appointing a liberal judge when in fact I will appoint a great conservative and I am the only candidate who has gone so far, at the debate, as to suggest two individuals I feel would best represent the conservative values we need to protect: William “Bill” Pryor Jr. and Diane Sykes.

Cruz says I am pro-choice, when in fact I am staunchly pro-life and have been for a long time. Like Ronald Reagan, on many issues, I have evolved.

Cruz says I am in favor of ObamaCare, when in fact I have spoken about repealing and replacing this disaster of a system at every speech throughout my campaign and since its inception. Meanwhile, Cruz was responsible for getting Bush to put in the judge that failed to vote against ObamaCare twice.

Cruz says I will try to take away your second amendment rights, when I am one of the strongest proponents of the right to bear arms and I say so in every speech that I have made for years. I am a proud member of the NRA and so are my sons.

Cruz has become unhinged and is lying with the hopes that his statements will go unchecked until after the election and he will save his failing campaign.

In Iowa, Cruz told thousands of Ben Carson voters that Dr. Carson had left the race and to instead vote for Ted Cruz. He apologized when the race was over. Likewise, his fraudulent voter violation form sent to Iowa voters. If Ted is going to continue to lie with such desperation, I have no choice but to fight back.

One of the ways I can fight back is to bring a lawsuit against him relative to the fact that he was born in Canada and therefore cannot be President. If he doesn’t take down his false ads and retract his lies, I will do so immediately. Additionally, the RNC should intervene and if they don’t they are in default of their pledge to me.

I am the strongest on the borders and I will build a wall, and it will be a real wall. I am strongest on illegal immigration, strongest on ISIS, strongest on the military and I will take care of our Vets. I will end common core and preserve the second amendment. I will renegotiate our trade deals and bring our jobs back to our country. I am the only person who will Make America Great Again.

Trump's threat to sue Cruz and try to get a definitive ruling on whether or not the Ontario-born senator qualifies as naturally born is not empty. Trump loves suing people and during a winding, Cruz-bashing filled press conference Monday afternoon, he assured reporters that experts had told him that Cruz was ineligible to run. The only thing holding up the lawsuit was that, Trump said, the papers were still being drawn up.